Double Expanding Gate Valve Definition

Double expanding gate valve products features and benefits. Metal to metal seated hardfaced w. Vatac designs and manufactures a broad line of through conduit slab gate valves and double expanding gate valves to satisfy the long distance transportation.

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Double expanding gate double expanding gate valves are made by two sliding pieces consisting of a gate and a second segment male and female wedge segment.

Double expanding gate valve definition.

Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. The smooth continuous bore minimizes turbulence. Double block and bleed capability and high robustness are standard feature of this seat design. Api 6d or api 6a through conduit double expanding gate valve bolted bonnet.

Subsea slab gate valves psl 3g pr2 test. It is a linear motion valve used to start or stop fluid flow. A gate valve is the most common type of valve used in any process plant. 10 inch 600 body and trim material duplex.

Ball valves with pneumatic actuator and control panel for ncoc. Double expanding gate valves have a gate wedge split into two parts mainly male and female segments. The gate faces can be parallel but are most commonly wedge shaped. B21 double expanding gate valve by valland s p a.

Rays through conduit double expanding gate valves are manufactured with a full bore port and with 2 piece gate segment obturator designed for a positive bubble tight shut off upstream and downstream under both low and high differential pressure. The gate female wedge is driven by the stem and a centralizer mechanism guide helps in retaining the gate segment assembly until sealing through expansion is required. The male and female parts of the wedge are often termed as gate and segment by different manufacturers. A gate valve can be defined as a type of valve that used a gate or wedge type disk and the disk moves perpendicular to flow to start or stop the fluid flow in piping.

Double expanding gate valve. Bi directional sealing by seal on both sides. Rising stem outside screw amp. A gate valve also known as a sluice valve is a valve that opens by lifting a barrier out of the path of the fluid.

Normally the gate and segment have a cam retained design control arm or lever lock arm. True double block and bleed one valve to replace two traditional block valves metal to metal primary sealing system mechanically energized and not dependent on pressure metal to metal secondary sealing system does not rely on any elastomeric or plastic seals full hard facing on all 4 wedge surfaces a complete.